Automatic cut-off for vapor-burners.



S. STENBERG.

AUTOMATIG GUT-OFF FOB VAPOR BURNERS.

APPLICATION FILED SEPT. 1'7, 1908. I

Patented Apr. 12,1910.

ANDREW B GRAHAM ca. PHOTO-LITHUCRAPHERS. WASHINGTON. u. c.

UNITED STATES PATENT oEEIoE.

SIGGE STENBERG, OF SUNDBYBERG, STOCKHOLM, SWEDEN.

AUTOMATIC CUT-OFF FOR VAPOR-BURNERS.

To all whom it may concern:

Be it known that I, SIGGE STENBERG, a subject of the King of Sweden, andresident of Sundbyberg, Stockholm, Sweden, have invented an Apparatusfor Thermostatic Valves for vaporizing-Burners, of which the followingis a specification.

The present invention relates to an automatic cut-01f for vapor burners,and an eX- ample of the construction of the device is shown in theaccompanying drawing, in longitudinal section.

The usual vaporizing pipe leads to the burner 2. The valve spindle ofthe thermostatic valve, which latter is arranged and constructed in theusual way, lies in a recess in the body of the valve 4, which lies whenclosed upon the valve seat 5, thereby making the joint. The valvespindle 3 is connected to the valve body 4: in the following manner. Theend of the valve spindle which projects into the valve body has alongitudinal groove cut in it, into which projects a pin 7, fixed to thevalve body l. The arrangement is such that the pin 7, is at the top endof the groove 6, when the thermostatic arrangement is at rest, 2'. 6.when the burner is not lighted or being lighted. The valve body l mustthen also lie on the valve seat 5, and make a joint there. This would ofcourse follow as a result of the weight of the valve body, but it ismore suitable to insure it by a spring as indicated on the drawing. Forthis purpose a rod 8, consisting of a material which is a poor conductorof heat, is attached to the bottom of the valve body 4:, and is led downthrough the valve seat. To this rod, a spiral spring is attached, whosetension can be regulated by any suitable arrangement.

The spring 9 and the requisite parts are preferably arranged in a branchof the influx pipe 10. The branch 10 is arranged with a detachablebottom so that the arrangement for adjusting the spring is easilyaccessible. It is advantageous to make the spindle 8 so long that thespring 9 is some distance from the heat of the burner.

lVhen the burner is to be lighted, the apparatus is heated and thespindle 3 begins to rise. The whole apparatus is so arrangedSpecification of Letters Patent.

Application filed September 17, 1908.

Patented Apr. 12, 1910. Serial No. 453,555.

that the lower end of the groove 6, does not come into contact with thepin 7 till the vaporizing pipe 1 has reached the temperature necessaryfor the vaporizing of the liquid to be burned. As the spindle risesstill higher, the tension of the spring 9 is overcome and the valve body4 is lifted from its seat 5. When the burner is extinguished, all theaforementioned apparatus, in consequence of the cooling-down, and thetension of the spring, return to their original position. Thearrangement of the pin 7, and the groove 6, can of course be reversed,so that the pin is provided on the spindle 3, and the groove in thevalve body. In this case the pin, when at rest, must be in the bottompart of the groove. The joint between valve spindle 3 and valve body 4,could also be differently carried out. It is essential that these partsare relatively movable, and that the one does not engage with the otherbefore the vaporizing pipe reaches a temperature high enough for thevaporization of the liquid to be burned. Between the burner and theother valve a blowing out opening with plug 11 and cover 12 is provided.By removing the plug and cover, the pipe 1 can be easily cleaned.

Having fully described my invention, what I claim and desire to secureby Letters Patent is 1. In an apparatus for thermostatic valves forvaporizing burners, the combination of a supply pipe, a valve seatmounted in said supply pipe, a valve body for closing the valve seat, avalve spindle connected to the valve body and provided with a slot and apin, which spindle is adapted to slide vertically in said valvebody,abranch arranged on said supply pipe with means for fixing aspring, said spring being connected to a rod attached to the base of thevalve body, substantially as described and shown.

2 In an apparatus for thermostatic valves for vaporizing burners, thecombination of a supply pipe, a valve seat mounted in said supply pipe,a valve body for closing the valve seat, a valve spindle being connectedto the valve body and provided with a slot and a pin, which spindle isadapted to slide vertically in said valve body, a branch arranged onsaid supply pipe with means for my hand in the presence of twosubscribing fixing a spring, said spring belng connected Witnesses. to arod attached to the base of the valve I El FR body, a blowlng outopenlng, provided for S GGE ST \B J G the cleaning of the supply pipesubstantially Witnesses:

as described and shown. HUGO PALM UIST, In testimony whereof I havehereunto set JANE \VAHLSTEDT.

